Figure 27. Cross-sectional views of megaripples from the digital terrain model produced from bathymetric data collected during National Oceanic and Atmospheric Administration survey H11922. Bedform asymmetry and slip-face orientation (Reineck and Singh, 1980) indicates net northwestward and northeastward sediment transport in profiles A and B, respectively. The megaripples in profile C are predominantly symmetrical. Locations of profiles are shown in figure 21.